Granted Patent
Utility
US 4,937,063 · App. 07/298,215
Bismuth vanadate process
Inventor:
Robert M. Sullivan
Patented Case
View Patent ↗
Granted: Jun 26, 1990
Filed: Jan 17, 1989
Inventor
Robert M. Sullivan
Assignee (at issue)
Ciba-Geigy
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.